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AudioControl Rialto 400 Compact Amplifier And DAC

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  • $ 950

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The Rialto 400 has been updated to combine its legendary high-powered, audiophile performance and features, with an input stage devoted to voice-enabled devices, such as Amazon’s Echo® or Google Home®. This allows super-fast, accurate signal-sense switching when you expect it, while going about your daily activities.

The AudioControl Rialto 400, is a compact, high-powered amplifier with a built-in audiophile-grade DAC (digital to analog converter) designed specifically to provide greater performance and higher sound quality for all analog and digital systems, including Sonos® home entertainment systems.

The Rialto 400’s amplifier delivers over 100 watts of power per channel into 8 ohms and 200 watts per channel into 4 ohm loads AND CAN ALSO ACT AS A 400 WATT MONO-BLOCK. It features a built-in high-performance Wolfson® DAC that drastically improves audio quality, digital and analog audio-systems can perform with better speakers across the home.


  • Compact Amplifier and Digital Analog Converter (DAC)
  • 2 Channels x 100 Watts at 8 Ohms
  • 2 Channels x 200 Watts at 4 Ohms
  • Stable Down to 3.6 Ohms
  • Bridgeable Mono Block at 400 Watts
  • Digital Optical & COAX Inputs
  • Analog Stereo and Speaker Level Inputs
  • Ultra-fast signal-sense switching Priority Input for voice enabled devices
  • Selectable Input Priority for SMART Priority Switching between analog and digital inputs
  • Subwoofer Output
  • Wolfson Digital Analog Converter (DAC) For Audiophile Performance
  • AudioControl Patented AccuBASS® Bass Response
  • 12v Trigger Output
  • Headphone Output
  • Compact Size at 8.5”W x 5.4”D x 2.9”


  • Inputs
    • Digital Inputs: Optical Toslink, Coax S/PDIF 75 ohms
    • Analog Inputs: Stereo RCA, Stereo Speaker Level, Stereo 1/8th Inch
    • Input Sensitivity: 230mV (RCA); 2.0V (Speaker Level)
    • Signal Sense Trigger Minimum: 10mV (RCA); 100mV (Speaker Level)
  • Outputs
    • Amplifier Channels: 2
    • Power Output (8Ω): 100W per channel
    • Power Output (4Ω): 200W per channel
    • Minimum Speaker Load: 4Ω
    • Preamp Outputs: Mono RCA Subwoofer, Mono RCA Bridged
  • Performance
    • Signal to Noise Ratio: >95dB
    • Frequency Response: 20Hz-20kHz
    • Total Harmonic Distortion: 0.09%
  • General
    • Power Consumption (typical usage): 40W
    • Power Consumption (maximum): 520W
    • BTU/Hour Heat Dissipation (Standby): 5.5
    • BTU/Hour Heat Dissipation (Idle): 85.3
    • BTU/Hour Heat Dissipation (1/8th power – loud listening level) 4 Ω: 109.2
    • BTU/Hour Heat Dissipation (1/8th power – loud listening level) 8 Ω: 92.1
    • BTU/Hour Heat Dissipation (full power) 4 Ω: 426.6
    • BTU/Hour Heat Dissipation (full power) 8 Ω: 173.3
    • Line Voltage: 100-120VAC/200‐240VAC Switchable
  • Weights & Dimensions
    • Dimensions: 8.5”W x 5.4”D x 2.9”H
    • Weight: 6.0lbs (2.7kg)

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to



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